Rack



FIG. 1 is a perspective view of a rack showing my new design;

FIG. 2 is a front elevational view thereof; the opposite side being amirror image of that shown;

FIG. 3 is a left elevational view thereof; the opposite side being amirror image of the shown.

FIG. 4 is a top plan view thereof; and,

FIG. 5 is bottom plan view thereof.

The ornamental design for rack, as shown and described.